"The fact that this occurred is extremely troubling to us, and we will continue to work across the apparel industry to improve fire safety education and training in Bangladesh, " the firm said in a statement.

BBC: Bangladesh factory fire 'troubles' Walmart

"The plan to re-float the hull in one piece gives top priority to minimising environmental impact, to protecting Giglio's economy and tourism industry, and to maximum safety of the work, " Costa Cruises said in a statement.

CNN: Wrecked Costa Concordia to be raised from Italian sea bed